How a fast charger works.

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Smartphone batteries charge when a current passes through them. Greater current and higher voltages charge batteries faster, but there’s a limit to what they can take. The charge controller (I.C.) protects against dangerous spikes in current. The controller chip regulates the overall flow of electricity into and out of the battery. Generally speaking, lithium-ion controllers define the current (in amperes) at which the battery charges by measuring the battery’s cell current and voltage, and then adjusting the current flowing in. Some use a D.C. to D.C. converter to change the input voltage, and fancier integrated circuits adjust the resistance between the charger input and the battery terminal to ramp the current flow up or down. The amount of current the charge controller draws is generally dictated by the phone’s software.

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what is your opinion about it?

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You may read my following posts

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You may read my following posts to know about ideal RAM

https://community.samsungmembers.com/en_IN?projectId=0&meta=#/post?postId=403970

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You may read my following post to know about battery maintenance

https://community.samsungmembers.com/en_IN?projectId=0&meta=#/post?postId=404011

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You may read my post to know about display

https://community.samsungmembers.com/en_IN?projectId=0&meta=#/post?postId=404019

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You may read this to know about devices getting Android Pie

https://community.samsungmembers.com/en_IN?projectId=0&meta=#/post?postId=401564

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You may read this to know about Adaptable Storage

https://community.samsungmembers.com/en_IN?projectId=0&meta=#/post?postId=401551

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You may read to know about temperature affects on mobiles performance
https://community.samsungmembers.com/en_IN?projectId=0&meta=#/post?postId=404042

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Samsung Foldable Phones Price and Launch Revealed
https://community.samsungmembers.com/en_IN?projectId=0&meta=#/post?postId=400417